Fast Determination of Residual Sulfonamides in Milk by In-Tube Solid-Phase Microextraction Coupled with Capillary Electrophoresis-Laser Induced Fluorescence

In-tube solid-phase microextraction coupled with capillary electrophoresis-laser induced fluorescence (IT-SPME-CE-LIF) was developed for fast, feasible, eco-friendly determination of residual sulphonamides in food.